The fast atom bombardment mass spectra of xanthane dyes

Abstract

The Fast Atom Bombardment mass spectra of a number of xanthane dyes are reported. These dyes are insuf6cienUy volatile to give spectra by conventional electron impact ionization. Fragmentation pathways have been determined by metastable Linked scan techniques and accurate lllssses obtained by peak matching.The xanthane dyes may be readily identified from their FAB spectra by the presence of chcteristic ions.

Fragmentation Reactions of Rhodamine B and 6G as Revealed by High Accuracy Orbitrap Tandem Mass Spectrometry

“…Similar results were also reported for salts of rhodamine 6G. In 1984, Brown et al 13 reported the first investigation on the Ferreira et al 137 Vol. 28, No.…”

Characterization of anti-theft devices directly from the surface of banknotes via easy ambient sonic spray ionization mass spectrometry

“…Note that the fragmentation observed is in agreement with Rhodamine B. The fragment ion of m⁄z 399 results from the neutral loss of 44 mass units, which is generally accepted to be due to decarboxylation (− CO 2 ) [36][37][38], but note that the ESI(+)-HRMS/MS data unequivocally identify this to be the loss of a propane molecule (− C 3 H 8 ) with an error of only − 1.3 ppm (Table 1). Indeed, the loss of a propane from the diethylamine group has been predicted to be favored over the loss of a CO 2 [39][40][41].…”

Fragmentation of xanthene dyes by laser activation and collision‐induced dissociation on a high‐resolution Fourier transform ion cyclotron resonance mass spectrometer

“…[1,2] Probing of fluorescent molecules inside mass spectrometers showed that this decrease in fluorescence efficiency correlated with the appearance of photofragments, as demonstrated by Chingin et al [2] who discussed the mass spectrometric data of Rhodamine 6 G and its isomers. Brown et al [3] investigated the fragmentation behaviour of Rhodamine B after fast atom bombardment mass spectrometry. The collision-induced dissociation (CID) of the Rhodamine B cation was also investigated on a thermospray triple quadrupole instrument by Ballard and Betowski.…”